/Engine/Source/Developer/TargetPlatform/Public/Common/TargetPlatformBase.h
Returns custom DeviceManager widget creator for this platform
virtual [TSharedPtr](API\Runtime\Core\Templates\TSharedPtr)< [IDeviceManagerCustomPlatformWidgetCreator](API\Developer\TargetPlatform\Interfaces\IDeviceManagerCustomPlatformWidg-) > GetCustomWidgetCreator() const